Document mqbZ4VgrwNLvjng35gRQpDLjJ
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7979 GSRi AVE. BATON ROUGE, LA 70820
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ASBESTOS FIBER COUNT ANALYSIS
FOR
DOW CHEMICAL Industrial Hygiene Bldg. 3502 W
Post Office Box 150 Plaquemine, LA 70765-0150 ATTENTION: Ms. Darlene Creel
June 23, 1992
A Member of the Inchcape Environmental Group
204570 DO A 114845 CONFIDENTIAL
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7979 GSRI AVE BATON ROUGE. LA 70620
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DOW CHEMICAL Plaquemine, LA
June 23, 1992
Three (3) filter cassette samples were received on June 19,
1992 for Dow Chemical for fiber count. Fibers larger than 5
microns in length were counted by means of phase-contrast
microscopy at a magnification of 400X. The procedure recommended
by NIOSH method 7400A was followed.
Pertinent information
regarding fiber counts is as follows:
Field Area: 0.00785 mm2 (Walton Beckett Graticule)
Effective Collecting Area:
385 mm2 (25 mm Cassette)
855 mm2 (37 mm Cassette)
Limit of Quantitation: 10 fibers/100 fields
Limit of Detection: > Average Blank Count
@ Detection limits are based upon a minimal concentration of 7
fibers/mm2.
Sample I.D.
LHC II: 14071
Blank #1 Blank #2
Fibers (>5um) Observed
No. of Fields Observed
Fibers per
Filter
Volume of
Air (L)
4 100 1,962 0 100 <490 0 100 <490
Fibers (>5um) per c.c. of Air
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A Member of the Inehcape Environmental Group
204570
DO A 114046 CONFIDFNTTAL
J
WEST PAINE LABORATORIES INC.
7979 GSR1 AVE. BATON ROUGE, LA 70820
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Sample l.D.:
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CHAIN-OF-CUSTODY RECORD
SAMPLE COLLECTION:
Collector's Name: Darlene S. Creel
Telephone: (504)389-6181
Company Name: Dow Chemical (Industrial Hygiene Bide. 3502W0
Address: P.O. Box 150. Plaouemine. Louisiana 70765-0500
6-/Date Sampled:,
_Time:_
Type of Process or Facility Sampled: Fiber count via NIOSH 74Q07? (j}7TCu*
Field Information:^ Filter cassettes for fiber per filters
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SAMPLE SHIPPING (other than transportation by collector):
Transporter's Name:
__________ Date:. G-)Vn.
Company Name: West Paine Courier Address:_____________ ^ __________
Time: ;; v*- -
SAMPLE RECEIVING: Person accepting sample.
QfijMjM________ Date:
; ^Time: /g/d
Company Name: WESTT--PA1NJ5LAB0KATOR1ES. IttC,
Address: 7979 GSRIAVENUE BATON ROUGE. LOUISIANA 70820
PHONE: (504^1769-4900
Sample DispositionStorage
Further TransportationOther___
CHAIN-OF-POSSESSION: (Attach additional sheets as needed to show continuity) TERMINATION OF CHAIN OF CUSTODY:
00 A 114847 CONFIDENTIAL
Authorized by:_
_Date:_
.Time:
Company/Name:.
.Address:
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